What do you need this for, you might think. However you might be in a situation where you do not have the exact role , but you have one that functions the way you want but it has the wrong name. And you want it to say the correct thing on the signing page.
Change role name in Penneo web
In step 3 (Add signers) in the web part there is a small cogwheel you can click to get a extended menu for roles:
At Custom role you can change the name of the role. In this example we can change the role from Signatory to for example CEO.
Change name in desktop app
In step 3 of the desktop app you can change the role name by clicking the box where you select roles for the signers:
A small window opens where you can select the different available roles. Click 'Edit' to change the name.
Remember that role does not change behavior, so it still signs the same document types as before. So if you change a role from Seller to Buyer then the person will still be signing the documents that the seller would normally sign.